I thought you got your issue with the headphone output and the SPDIF connection between your Eleven Rack and the Mbox3 or Saffire interface sorted out in the other thread here . Are you look for another solution?

Its resolved to satisfaction, but there is still noticeable differences and it seems due to either the conversion process or the headphone port. I'm trying to get honest feedback from everyone comparing their interface headphone port to the 11r's.